util.cc: reduce two read_file functions into one (#20655)

* no need to malloc one extra byte

* combine two read_file into a faster one

* cleanup #include

* use resize

* apply suggestions from review

* space

* rebase master
old-commit-hash: fe2f63849a
This commit is contained in:
Dean Lee
2021-04-14 02:43:43 +08:00
committed by GitHub
parent ba58b382e2
commit 7534abdd50
8 changed files with 41 additions and 69 deletions
+1 -1
View File
@@ -40,7 +40,7 @@ void FrameBuffer::swap() {
bool set_brightness(int brightness) {
char bright[64];
snprintf(bright, sizeof(bright), "%d", brightness);
return 0 == write_file("/sys/class/leds/lcd-backlight/brightness", bright, strlen(bright));
return 0 == util::write_file("/sys/class/leds/lcd-backlight/brightness", bright, strlen(bright));
}
void FrameBuffer::set_power(int mode) {